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Ford Performance Halfshaft Axle Assembly Upgrade Kit (15-20 All)

Item 397307
Market Price $2,103.48 You Save 19% ($408.50)
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      Review & Installation Video

      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • Severe Duty CV Joint with CNC Billet Center
      • Constructed with Aerospace Alloy Materials
      • Billet 1-piece 34-spline Inner and 32-Spline Outer Stub Ends
      • Axle shafts Feature Anti-Wheel Hop Technology
      • Limited Lifetime Warranty
      • Fits All 2015-2020 Ford Mustangs


      Maximum Protection. Upgrade your Mustang with the Ford Performance Halfshaft Axle Assembly Upgrade Kit. Made with aerospace alloy materials and billet one-piece 34-spline inner and 32-spline outer stub ends, these halfshaft axles will ensure that your hot rod pony gets the most out of its existing torque and power.

      Built to Take a Beating.
      The CV joints are severe-duty serviceable, and the CNC billet centers are made to endure high-stress conditions. It's time to put all of those worries to bed and take back the road with the Ford Performance Halfshaft Axle Assembly Upgrade Kit.

      Cutting-Edge Technology.
      Whether your Mustang is currently dealing with an axle issue or you want to prevent any potential future issues and get the most out of your ride, the Ford Performance Halfshaft Upgrade Kit has you covered with the technology to back it up. Each Ford Halfshaft Axle is equipped with anti-wheel hop technology and is finished with an aerospace-grade, electrically bonded coating for longer lasting resistance against corrosion.

      The Ford Performance Halfshaft Axle Assembly Upgrade Kit is specifically designed for use on 2015-2020 Mustangs, including V6, EcoBoost, and GT models.

      Fitment: 2015 2016 2017 2018 2019 2020 Details

      MPN# M-4130-MA

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (9)

      Write a Review

      Ratings Summary

      4.9 out of 5 overall rating from 9 customers

      Installation Time: Full Day

      Installation Cost: $250-$500

      • April 01, 2019

        5 2019 GT - SAm Installation Time: Afternoon

        Big Horsepower Axles

        I have these axles in my 17 Roush and my 19 GT A10 car which is twin turbo makes 1,000 plus Horsepower, you cant break these axles they are the best which G-Force builds them for Ford, its basically G-Force Outlaw axles!! Plus lifetime warranty, 1,800 bucks well worth it!!

        Helpful (3)
      • February 25, 2019

        5 2018 GT - MichaelG Installation Time: Shop Install Installation Cost: $250-$500

        Ford performance axles

        Axles and driveshafts are a necessary upgrade if using drag radials or slicks at the track .... stock axles are garbage and Ford should be embarrassed putting this garbage on a Mustang with 460 HP

        Helpful (3)
      • August 30, 2018

        5 2018 GT - MichaelMac Installation Time: Afternoon

        They Hold the Power!

        They do the job, very easy installation straight. I left off the transbrake on my 2018 mustang a10 with over 700hp they held up just fine, without any suspension modifications.

        Helpful (16)
      • July 10, 2018

        5 2018 GT - KimK Installation Time: Shop Install Installation Cost: $250-$500

        Wow, big difference!

        Just installed the Ford Performance axles and these are a work of art compared to stock. Just the visual comparison is quite impressive. This is a must for 700 HP Mustangs.

        Helpful (14)
      • April 26, 2018

        5 2015 GT - TravisR Installation Time: Full Day


        I have only put a few miles on the half shafts, but since they are from Ford Racing I don't think I will have any issues with them. The install was straight forward. I ended up using the LMR instructional video because they showed how to take the whole spindle off and included torque specs during the installation. I did it in my garage on jack stands. The hardest part I had was removing the driver side spindle. The halfshaft came out before I could get the spindle off. Ended up snapping a 3 arm puller (cheap Harbor Freight), so I bought another one from AutoZone and was afraid that one was going to snap too for as much torque I was applying to finely get the spindle to slide out. Install went smoothly except for snapping one bolt (my fault, but it would have been nice for any of the many instructional videos to include Fords to mention that fact). It took me a full day because of the spindle issue I had and not having the right puller. Otherwise I could have had it done in 5-6 hours. Notes: There is no torque spec for the bolts attaching the break caliper to the caliper bracket (learned that the hard way). Tools needed: Jack, jack stands (4x), 3-4 lb dead blow mallet, 6" three arm puller ($40) and pry-bar. Impact wrench is really nice to have. 21 1/4 is the largest socket you will need and the only standard socket used. 9mm, 10mm, 14mm,18mm and 21mm sockets/wrenches. cheater bar (I used the box end of a wrench). inlb torque wrench and lbft torque wrench (20-203 is the range of torque specs) Blue Lock tight and zip ties. The hardest tool I had trouble finding was a lbft torque wrench that went up to 250lbft.

        Helpful (20)
      • March 27, 2018

        4 2017 GT - JohnW Installation Time: Full Day

        Don't know yet?

        They feel great, but having some noise upshifting. It's just like transmission to axle noise but about double. It seems to only be upshifting. Need somebody that knows if it's just from heavier duty shafts and mabe need to add some differential bushings or could it be something wrong. Triple checked install every thing looks good, but did not take back apart. Thanks

        Helpful (32)
      • November 23, 2017

        5 2017 GT - SamC Installation Time: Weekend

        Ford Half Shaft’s

        These axles are one of the best out there! I’m making over 700hp to the tire and these are a must! They can handle hard launches! G-Force actually builds these for Ford so you know they are some good ones!!

        Helpful (19)
      • August 22, 2017

        5 2016 GT - NiravP Installation Time: Afternoon

        Great product easy install...

        I bought these in preparation for a supercharger. Halfshafts are a must for the s550 Mustangs.

        Helpful (17)
      • February 21, 2017

        5 2016 V6 - 1337QU15C0P3R Installation Time: Full Day

        Great half shafts!

        I was in the process of upgrading my stock differential to a 3.73 torsen so I threw these in as well with a new driveshaft. The construction of these new half shafts are ford performance expected quality. I have no doubt that these half shafts will survive hard launches. I recommend also picking up a driveshaft safety loop for added protection.

        Helpful (21)

      Questions & Answers (9 answers)

      5 Top Rated Questions

      What's the horsepower rating?

      • Hello! This Ford Performance Halfshaft Axle Assembly Upgrade Kit is rated up to 1500HP!

      Helpful (16)

      What is the horsepower /torque rating of these axels?

      • The Ford Performance Halfshaft Axle Assembly Upgrade Kit is rated up to 1500hp

      Helpful (3)

      Adding these halfshafts can replace doing the Steeda IRS upgrades or does this complement it?

      • The Ford Performance Halfshaft Axle Assembly will be used to handle more power and load before half shaft/axle breaks occur. The Steeda IRS upgrades are used to assist in getting better traction and handling.

      Helpful (3)

      seems like a decent upgrade. I wonder how much increase in weight compare to the stock ones?

      • Hello, these are an excellent upgrade to the stock half shafts! As far as the weight difference goes, these are a little beefier but are also made with high strength alloys. So I would say if there is a weight difference between stock it shouldn't be by much.

      Helpful (3)

      What's the difference between this kit and the M-4130-M?

      • This halfshaft axle assembly kit has been modified to fit GT350's, whereas M-4130-M cannot.

      Helpful (2)
      Post Your Question
      4 More Questions
      Will these fit the 3.15 Auto differential gear housing? 1 answer
      What is the difference between the kit and buying the half shafts separately? Does the kit include something additional? 1 answer
      With the upgrade half shaft, would I also need an upgraded driveshaft ? With 700HP setup ? 1 answer
      Can you explain the limited lifetime warranty and the specifics of what isn't covered in the warranty? Thank you 1 answer

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Passenger Side Half Shaft Axle Assembly
      • (1) Driver Side Half Shaft Axle Assembly

      Tech Specs

      Will It Fit My Mustang

      • Bullitt - 19, 20
      • EcoBoost - 15, 16, 17, 18, 19, 20
      • GT - 15, 16, 17, 18, 19, 20
      • GT350 - 15, 16, 17, 18, 19, 20
      • GT350R - 15, 16, 17, 18, 19, 20
      • GT500 - 20
      • V6 - 15, 16, 17

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